- Author
-
Maref, W.
|
Cherkaoui, H.
|
Crausse, P.
|
Boisson, H.
- Title
- Heat Transfer in the Turbulent Flow Through a Conduit for Removal of Combustion Products.
- Coporate
- National Research Council of Canada, Ottawa, Ontario
- Journal
-
Building and Environment,
Vol. 38,
No. 6,
763-770,
June 2003
- Report
-
NRCC-46096,
- Keywords
-
combustion products
|
heat transfer
|
conduit
|
turbulent flow
|
velocity
|
boilers
|
computational fluid dyanmics
|
temperature field
|
turbulence
|
equations
- Identifiers
- smoke conduit; unsteady state; thermal and dynamic fields; French Scientific and Technical Centre for Building (CSTB)
- Abstract
- A numerical model was presented to calculate the velocity and thermal fields of turbulent flow through a conduit for removal of combustion products. This study originated in response to an industrial concern to study dynamic behaviour of a smoke conduit connected to a high efficiency gas boiler working in permanent running mode (steady state), or cyclical non-static running mode (unsteady state). The momentum and temperature fields were calculated via a finite volume CFD code using the k-å turbulence model. The validation of this calculation was conducted employing a full-scale experimentation. Comparisons of temperature fields were made, and the model was shown to give an acceptable quantitative approach for design within the framework of the coarse approximations adopted.